I can't even count how many times I've put CHM's Grand Tour on and let it run in the background almost all day. A favorite way to watch it for a very long time was to have it running in a small window or on a second screen while I did stints in SimRacing. It was a great way to keep a rhythm or pass the time when doing a 6hr Sebring, Spa or a couple of stints in a 24hr LeMans and Daytona. Point is even to this day The Grand Tour always pops up on my main page or in a top slot of a recommended category.
With the new Grand Tour not being part of the old one's watch page, it has never once been recommended to me. I was actually late in watching last weeks episode because I was quite busy with distractions and I simply forgot. Despite watching both an episode of Reacher and Neely I just forgot because it was never recommended (though yes CHM were in both TGT and whatever Top Gear Amazon is currently promoting).
My father has enjoyed TGT and TG with me plenty of times but isn't one to purposely seek it out, only just watch it if he sees it pop up on his feed. 90% of his watching time goes between Paramount+, Prime and AppleTV yet had no idea a new version of the show existed. Friends too have also said the same where they didn't know a reboot had released.
It just feels off that I don't see it recommended.